Binding to static class property [duplicate]

Answer 1

It worked for me!

When you have static class with static property like this

 namespace App.Classes
 {
     public static class AppData
     {
         private static ConfigModel _configModel;
         public static ConfigModel Configuration
         {
            get { return _configModel; }
            set { _configModel = value; }
         }
     }

     public class ConfigModel : INotifyPropertyChanged
     {
         public event PropertyChangedEventHandler PropertyChanged;

          private bool _text = true;
          public bool Text
          {
               get { return _text ; }
               set { 
                     _text = value; 
                     PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Text"));
               }
          }
      }
}

You can bind it to xaml like this.

xmlns:c="clr-namespace:App.Classes"

<TextBlock Text="{Binding Path=Text, Source={x:Static c:AppData.Configuration}}"/>

Answer 2

For those who use nested static classes to organize/seperate constants. If you need to Bind into nested static classes, It seems you need to use a plus (+) operator instead of the dot (.) operator to access the nested class:

{Binding Source={x:Static namespace:StaticClass+NestedStaticClasses.StaticVar}}

Example:

public static class StaticClass
    {
        public static class NestedStaticClasses
        {
            public static readonly int StaticVar= 0;

        }
    }

Answer 3

This has worked for me:

Text="{Binding Source={x:Static MyNamespace:MyStaticClass.MyProperty}, Mode=OneWay}"

Without Mode=OneWay I got an exception.

Answer 4

You can bind to ANY property on a static class using the x:Static markup extension but if thy do not implement any change tracking, it might cause errors on the refresh!

<TextBlock Text="{Binding Source={x:Static sys:Environment.MachineName}}" />